walls | Page 4

walls

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  1. S

    Casing walls and sinking back boxes

    Hi I have permission from building control to start work I have many backboxes to sink and cables to chase up walls. What I was thinking of is using something like this in the picture but one I can attach to a SDS drill. Do they exist? I don't think I have the strength to do this manually...
  2. J

    Abandoning cables in walls

    Hi, does anyone know if there is an approved method of abandoning cables in walls? I have a customer who wants wall lights in her living room disconnected, she wants the cables buried in the wall and plastered over so she can decorate over. I can obviously disconnect the live from the switch...
  3. vjsmarwick

    building inspectors

    Been having trouble with our own house here are some of the things you would never believe First day we had water running down the walls contacted the council and the inspector said " we have had a lot of rain and wind the last few days I am not surprised " Is it not a requirement these days...
  4. R

    Cables run in Cavity Walls

    Any thoughts, Advice, Experience of running cables within cavity walls welcome please .
  5. J

    Wireless PIR

    Hi, I am changing some communal stair lighting in a block of offices and they want them to be on PIR sensors. Does anyone know of a product that uses just a master PIR that you wire into the switch line for all the lights, and then a wireless sensor i can fit at each level that will active the...
  6. P

    Insulation resistance/impendance of non-conducting floors and walls???

    Hi guys, Im trying to find out the instrument used and the units it measured in for Insulation resistance/impendance ofnon-conducting floors and walls am i right in saying Instrument used =Magneto-ohmeterand test electrodes Units = ohms and in 0.01's
  7. kingeri

    Flat plate screwless sockets etc.

    Evening all. I have a job coming up to replace all the white accessories with flat plate screwless ones. I haven't used these before, just wanted any heads up from anyone who has. Is there anything special I need to do or any problems I might experience?
  8. F

    Concrete ceiling walls floors,,

    Lady wants me to rewire a 3 bed flat however its all in concrete and im still fresh in the business, how would i go about doing this,, trunking or channelling out all the existing cables and repair work.. also i am not elecsa or niceic etc registered im a sole trader,,and she wants it on the...
  9. T

    plasering walls

    i was wondering if anyone has tried repairing any little jobs,adding the odd double socket or so? was thinking of using board finnish as i have bag fulls left in cellar,my worry is would it bond or crack existing plasterwork. any ideas welcome?
  10. 1Justin

    Hiding meter tails in walls, sufficient mechanical protection

    522.6.101(iii) requires trunking 50x50 to BS EN 50085-2-1 . But mechanical protection (iv) : We agree that mechanical protection is "difficult to provide" and we are advised here of 3 or even 5mm steel. The lid of the BS EN 50085-2-1 trunking is not this thick, yet that trunking could be...
  11. S

    Builders Prices

    can you guys give me an idea of prices for builders or even message me a guide. I really dont want to come unstuck as have done a few jobs on price for builders but with hold ups etc it soon eats into your money. As with boarding of walls whats the best route as some builders are helpful and...
  12. E

    9.5kw shower on a 6mm

    This has probably been done to death, but... What is the best thing to do if you find 9.5kw shower on a 6mm cable and 40 amp breaker?? I told the customer cabling needs upgrading
  13. S

    can i drop cables down 100mm internal metal plasterboard walls

    can i drop cables down 100mm internal metal studded plasterboard walls as someone says i cant becouse the gap cuold be less than 50mm each side of cable, if not what should i do if i cant use rcd on the curcuit.
  14. R

    Running cables through cavity walls.

    What's the cencus on this, to get cables to another floor. Cables obviously need to be fixed, I'm cant see how they could be running through the cavity unless I'm missing something? Also there is the problem of cables being de-rated if cavity insulation is added.
  15. J

    Cables through walls, not in them.

    Am I correct in thinking that the requirement for RCD protection for cables that are <= 50mm deep, does not apply to cables that simply go though a wall horizontally, from one side to another? If so, are there limitations to exactly how horizontal the cable must be, or could you for example...
  16. 0

    Flushing sockets in walls

    I want to flush about 3 or 4 sockets into the wall...existing cables are long enough thankfully.(sockets are currently surface mounted) Do i need to make sure the circuit is rcd protected as i have an old wylex with push in breakers? This is'nt classed as an addition or alteration????
  17. B

    Socket height debate

    Ok , I know the regs say 450mm minimum from floor but on the job I am on at the moment the site agent is wanting the sockets at 40mm centres. After stating that they should be ae at 450mm to bottom he said they will be at 400mm centre end of story
  18. P

    Drilling holes in walls

    Hi all I am wanting to fit an extractor fan in a kitchen wall. The spec says it needs a hole 173mm in diameter, but the diamond core drill bit sets I see for sale at the usual places only seem to go up to 152mm. Any advice or alternative suggestions please? Thanks
  19. P

    lat and plaster walls

    any advise on how chase the lat and plaster walls and get a fixing for a plasterboard box or metal box
  20. A

    Flint walls

    Hi, I am after some advise as to drilling a hole in 2 foot thick, flint built, walls large enough for 25mm pvc conduit. Any ideas, anyone successfully done it? Cheers

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